Irwin Cobalt Alloy High Speed Steel Fractional Straight Shank Jobber Length Drill Bits 21/64 in Dia x 2-13/16 in
Constructed of M-35 5 percent cobalt alloy high speed steel for super abrasive resistance in tough metals
Heavy duty spiral flute design produces faster chip ejection
Shorter cutting lips reduce torque for drilling in high tensile strength materials.
135-degree split point reduces feed pressure for easier penetration without work hardening
Heavy duty spiral flute design produces faster chip ejection
Shorter cutting lips reduce torque for drilling in high tensile strength materials.
135-degree split point reduces feed pressure for easier penetration without work hardening
